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Direct phase and amplitude characterization of femtosecond laser pulses undergoing filamentation in air.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Odhner, Johanan H. Levis, Robert J. |
| Copyright Year | 2012 |
| Abstract | Measurement of the temporal (spectral) phase and amplitude of a 50 fs laser pulse approaching and exceeding the critical power for self-focusing (P(crit)) in air reveals the formation of an isolated 17 fs pulse at 3P(crit). The dynamics of self-shortening are measured directly in the filament using transient-grating cross-correlation frequency-resolved optical gating with a noble gas serving as the nonlinear medium. Our results support recent filamentary propagation simulations, suggesting that a Kerr-dominated temporal reshaping process toward the end of the filament is largely responsible for the generation of short pulses. |
| File Format | PDF HTM / HTML |
| DOI | 10.1364/OL.37.001775 |
| PubMed reference number | 22627567 |
| Journal | Medline |
| Volume Number | 37 |
| Issue Number | 10 |
| Alternate Webpage(s) | http://www.acms.arizona.edu/MURI/Publications/39_directphase.pdf |
| Alternate Webpage(s) | https://doi.org/10.1364/OL.37.001775 |
| Journal | Optics letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
